DE69916257D1 - Two-stroke internal combustion engine - Google Patents
Two-stroke internal combustion engineInfo
- Publication number
- DE69916257D1 DE69916257D1 DE69916257T DE69916257T DE69916257D1 DE 69916257 D1 DE69916257 D1 DE 69916257D1 DE 69916257 T DE69916257 T DE 69916257T DE 69916257 T DE69916257 T DE 69916257T DE 69916257 D1 DE69916257 D1 DE 69916257D1
- Authority
- DE
- Germany
- Prior art keywords
- combustion chamber
- exhaust port
- crank chamber
- chamber
- scavenging ports
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B47/00—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
- F02B47/04—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being other than water or steam only
- F02B47/08—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being other than water or steam only the substances including exhaust gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
- F02B25/14—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/18—Other cylinders
- F02F1/22—Other cylinders characterised by having ports in cylinder wall for scavenging or charging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/41—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories characterised by the arrangement of the recirculation passage in relation to the engine, e.g. to cylinder heads, liners, spark plugs or manifolds; characterised by the arrangement of the recirculation passage in relation to specially adapted combustion chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Valve Device For Special Equipments (AREA)
- Supercharger (AREA)
Abstract
A two-stroke cycle engine having an improvement of its power output while reducing total hydrocarbons in the exhaust gases. The two-stroke cycle engine comprises a crank chamber (4) adapted to receive a fuel mixture through feed means and a combustion chamber (9) in a cylinder (1). Scavenging ports (5) are provided for communication between the combustion chamber and crank chamber to transfer the fuel mixture from the crank chamber to the combustion chamber while an exhaust port (3) is provided for exhausting the burned gases from the combustion chamber. Reciprocation of the piston (8) results in increase or decrease in volume of the combustion chamber while opening or closing the exhaust port and the scavenging ports. Communication means (10) are provided for communicating the exhaust port with the crank chamber via the scavenging ports to draw a portion of the burned gases from the exhaust port into the crank chamber when the piston is in its top dead center. <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20106599 | 1999-07-15 | ||
JP11201065A JP2001027122A (en) | 1999-07-15 | 1999-07-15 | Two-cycle engine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69916257D1 true DE69916257D1 (en) | 2004-05-13 |
DE69916257T2 DE69916257T2 (en) | 2005-04-14 |
Family
ID=16434809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69916257T Expired - Lifetime DE69916257T2 (en) | 1999-07-15 | 1999-10-01 | Two-stroke internal combustion engine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1069294B1 (en) |
JP (1) | JP2001027122A (en) |
AT (1) | ATE263915T1 (en) |
DE (1) | DE69916257T2 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6591792B2 (en) * | 1999-11-12 | 2003-07-15 | Maruyama Mfg. Co., Inc. | Two-cycle engine |
JP3484497B2 (en) | 2001-08-10 | 2004-01-06 | ミネベア株式会社 | Planar lighting device |
DE10223070B4 (en) | 2002-05-24 | 2015-10-08 | Andreas Stihl Ag & Co. | Two-stroke engine |
JP4249638B2 (en) | 2004-02-19 | 2009-04-02 | 株式会社丸山製作所 | 2-cycle engine |
WO2009093310A1 (en) * | 2008-01-23 | 2009-07-30 | Shindaiwa Corporation | Two-stroke engine |
CN102797550A (en) * | 2012-04-06 | 2012-11-28 | 天津内燃机研究所 | Two-stroke engine |
CN105020000B (en) * | 2014-04-22 | 2018-02-09 | 胡斯华纳有限公司 | Two stroke engine |
ITUA20164358A1 (en) * | 2016-06-14 | 2017-12-14 | Emak Spa | TWO STROKE INTERNAL COMBUSTION ENGINE |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5425346A (en) * | 1993-09-14 | 1995-06-20 | Mavinahally; Nagesh S. | Performance improvement design for two-stroke engines |
US5628295A (en) * | 1996-04-15 | 1997-05-13 | Mcculloch Italiana Srl | Two-stroke internal combustion engine |
-
1999
- 1999-07-15 JP JP11201065A patent/JP2001027122A/en active Pending
- 1999-10-01 AT AT99307776T patent/ATE263915T1/en not_active IP Right Cessation
- 1999-10-01 EP EP99307776A patent/EP1069294B1/en not_active Expired - Lifetime
- 1999-10-01 DE DE69916257T patent/DE69916257T2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1069294A3 (en) | 2002-01-09 |
EP1069294A2 (en) | 2001-01-17 |
EP1069294B1 (en) | 2004-04-07 |
ATE263915T1 (en) | 2004-04-15 |
DE69916257T2 (en) | 2005-04-14 |
JP2001027122A (en) | 2001-01-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |